Commercial refrigerator and freezer failure inspection method

There are many troubleshooting methods for commercial refrigerators. Below, Cookeryaki introduces you to some:

After a few minutes of normal operation of the freezer compressor, touch the condenser high pressure tube by hand. Depending on whether you feel the temperature rises rapidly, the condenser temperature also rises, the heat is higher, it cools and the filter surface is dry. The temperature should be close to room temperature or a mild hand temperature to determine if there is a fault.

To maintain a commercial freezer, first listen to the user feedback on the phenomenon of Industrial Fridge. For example, the cooling of the freezer does not cool, the electricity is not charged, and the noise is not large. Then, better understand the use and damage of the freezer.

After listening to the user's situation, power up the defective freezer and listen carefully to the start and operation of the compressor. Normally, it should be turned on and running without any problems for 0.5-0.3 seconds without any unusual noise. If the compressor makes an abnormal noise, it is abnormal. In addition, the sound of the refrigerant must be heard near the evaporator. If not heard, you can determine if the refrigerant is leaking or the capillary is clogged.

After a few minutes of normal operation of the freezer compressor, touch the condenser high pressure pipe by hand. According to whether you feel the temperature rises rapidly, the condenser temperature also rises. The heat is higher and it is heated and the filter is dry. The surface temperature should be close to the ambient temperature or mild hand temperature to determine if there is a fault.

After about 30 minutes, touch the inside of the evaporator with your hand to see if you feel an ice. If wet with wet hands, it indicates the temperature and pressure values ​​of each part of the cooling system of the fresh maintenance cabinet during normal operation.